yes, like chinese dragons and sea dragons, but those are not like dragons, because dragons builds nests, whereas chinese dragons roams the sky and sea dragons roams the sea, but a tree remains a closed space, still, it's possible to have arboreal dragons, but they'll be more of an endagered specie thn dragons themselves

Your view is still seemingly narrow. I mean, are you arguing, because one doesn't exist or not many exist than none should exist?

And we are talking about mythology, their are some large trees in mythology. lol. Or, even without a large tree there could be a smaller dragon. Or what about a baby that began in a tree! Or if none exist all the more reason for digimon to create one! We were apparently lacking!

I'm talking more about how can dragons evolve to become arboreal, much like life in earth, and the only way that I'm able to see so far is if they were small dragons that doesn't spit fire, and in mythology, there are actually mini dragons, just like there's big trees, the yggdrasil being the most famous one.